Heale Liane D, Dover Saunya, Goh Y Ingrid, Maksymiuk Victoria A, Wells Greg D, Feldman Brian M
Division of Rheumatology, The Hospital for Sick Children, 555 University Ave, Toronto, ON, M5G 1X8, Canada.
Child Health Evaluative Sciences, The Hospital for Sick Children Research Institute, 686 Bay St, Toronto, ON, M5G 0A4, Canada.
Pediatr Rheumatol Online J. 2018 Oct 22;16(1):66. doi: 10.1186/s12969-018-0282-5.
Children and adolescents with juvenile idiopathic arthritis (JIA) are less physically active than their healthy peers and are at high risk of missing out on the general health benefits of physical activity. Wearable activity trackers are a promising option for intervening in this population with potential advantages over traditional exercise prescriptions. The objectives of this study were to: (1) determine the feasibility of a wearable activity tracker intervention in adolescents with JIA; and (2) estimate the variability in response to a wearable activity tracker intervention on the physical activity levels of adolescents with JIA.
Participants aged 12-18 years with JIA were recruited during their routine rheumatology clinic visits at a tertiary care hospital. Participants completed the 3-Day Physical Activity Recall self-reported questionnaire at baseline, 1 week and 5 week follow-up. At the 1 week follow up, participants were instructed to start wearing an activity tracker for 28 consecutive days. Participants completed a feasibility questionnaire at their end of study visit. Participant demographics, adherence rates and feasibility outcomes were summarized using descriptive statistics. The effect of wearing a tracker on moderate-to-vigorous physical activity (MVPA) and total metabolic equivalents (METs) per day were analyzed using a paired t-test.
Twenty-eight participants (74% female; median age 15.1, range 12.8-18.6) were included in the analysis. All of the participants were able to synchronize the activity tracker to a supported device, use the activity tracker correctly and complete the study measurements. On average, participants had activity logged on their smartphone application for 72% of the intervention period. The standard deviation of the change in mean METs/day was 12.148 and for mean MVPA blocks/day was 3.143 over the study period.
Wrist worn activity tracking is a feasible intervention for adolescent patients with JIA. More research is needed to examine the effect of activity tracking on physical activity levels.
Not an applicable clinical device trial as per the criteria listed on ClinicalTrials.gov as the primary objective is feasibility.
患有幼年特发性关节炎（JIA）的儿童和青少年比健康同龄人身体活动更少，且极有可能无法获得体育活动对整体健康带来的益处。可穿戴活动追踪器是干预这一人群的一个有前景的选择，相较于传统运动处方具有潜在优势。本研究的目的是：（1）确定可穿戴活动追踪器干预对患有JIA的青少年的可行性；（2）估计患有JIA的青少年对可穿戴活动追踪器干预的身体活动水平反应的变异性。
在一家三级护理医院的常规风湿病门诊就诊期间招募年龄在12 - 18岁的JIA患者。参与者在基线、随访1周和5周时完成3天体力活动回忆自我报告问卷。在随访1周时，指导参与者连续28天佩戴活动追踪器。参与者在研究访视结束时完成一份可行性问卷。使用描述性统计总结参与者的人口统计学特征、依从率和可行性结果。使用配对t检验分析佩戴追踪器对每天中度至剧烈身体活动（MVPA）和总代谢当量（METs）的影响。
28名参与者（74%为女性；中位年龄15.1岁，范围12.8 - 18.6岁）纳入分析。所有参与者都能够将活动追踪器与支持设备同步，正确使用活动追踪器并完成研究测量。平均而言，参与者在智能手机应用程序上记录活动的时间占干预期的72%。在研究期间，平均每天METs变化的标准差为12.148，平均每天MVPA时段变化的标准差为3.143。
佩戴腕式活动追踪器对患有JIA的青少年患者是一种可行的干预措施。需要更多研究来考察活动追踪对身体活动水平的影响。
根据ClinicalTrials.gov列出的标准，这不是一项适用的临床设备试验，因为主要目标是可行性。
